Home / 4,722.20-6,516.96-3,126.09

Finding the Fourth Proportional to 4,722.20, 6,516.96 and 3,126.09

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Solution

The fourth proportional to 4,722.20, 6,516.96 and 3,126.09 is: 4,314.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,722.20 : 6,516.96 = 3,126.09 : x
  2. Step 2: Convert to fraction form
    4,722.20/6,516.96 = 3,126.09/x
  3. Step 3: Cross multiply
    4,722.20x = 6,516.96 × 3,126.09
  4. Step 4: Simplify right side
    4,722.20x = 20,372,616.20
  5. Step 5: Solve for x
    x = 20,372,616.20/4,722.20
  6. Step 6: Final answer
    x = 4,314.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.